JeffG
09-11-2013, 11:32 PM
I recently purchased the 356-120-TC Lee 90387 6 banger mold and needed to work up some loads, see how they would do on the chrony. I had been using the TL356-124-TC from Lee, the 90238 mold, which I've happy with. With the TL356-124-TC, I've been TL'ing them in LLA, sizing to .357 then TL'ing them again. With the 356-120-TC, I dip lubed them with Lyman Alox and sized to .357. I've done 2 strings, one with 4.1 gr Unique and the 2nd string with 4.3 gr Unique. For your viewing pleasure and comment. Have a good day.
Gun - S&W SD9 VE
Chamber Size = .356
Cases - Mixed, 90% + Blazer, 3rd load on brass
Bullet - 356-120-TC (Lee 90387)
OAL - 1.075
Alloy - COWW + 3% tin, air cooled
Powder - Unique
Lube/Sizing - Lyman Alox dip lubed and sized to .357
Hornady Powder Measure
Chronograph 6' from muzzle
1st String
4.1 Grain
1- 1031
2 - 985.5
3 - 1049
4 - 988.7
5 - 996.4
6 - 1018
7 - 996.1
8 - 1013
9 - 1001
10 - 1026
11 - 993.1
12 - 1009
13 - 1001
14 - 1036
15 - 1042
HV - 1049
LV - 985.5
ES - 64.37
AV - 1012
SD - 20.46
2nd String
4.3 Grain
1 - 1000
2 - 1031
3 - 1013
4 - 1043
5 - 1050
6 - 1059
7 - 1011
8 - 1026
9 - 1033
10 - 1058
11 - 1036
12 - 1034
13 - 1019
14 - 1042
15 - 1019
HV - 1059
LV - 1000
ES - 59.10
AV - 1032
SD - 17.23
In summary, both were fine accuracy wise for me. I was freehand shooting at some 6" steel swinging targets about 30 yards away and nailing them as long as I did my part. During cleanup I noticed a very small amount of leading near the muzzle and no lube star. I don't get this with my TL bullets with the same powder charge, etc. The bullets have only age hardened about 4 days so there might be something there. Next time, I think I'll go ahead an TL these too and fill the lube groove with Alox and see what happens. :cbpour:
Gun - S&W SD9 VE
Chamber Size = .356
Cases - Mixed, 90% + Blazer, 3rd load on brass
Bullet - 356-120-TC (Lee 90387)
OAL - 1.075
Alloy - COWW + 3% tin, air cooled
Powder - Unique
Lube/Sizing - Lyman Alox dip lubed and sized to .357
Hornady Powder Measure
Chronograph 6' from muzzle
1st String
4.1 Grain
1- 1031
2 - 985.5
3 - 1049
4 - 988.7
5 - 996.4
6 - 1018
7 - 996.1
8 - 1013
9 - 1001
10 - 1026
11 - 993.1
12 - 1009
13 - 1001
14 - 1036
15 - 1042
HV - 1049
LV - 985.5
ES - 64.37
AV - 1012
SD - 20.46
2nd String
4.3 Grain
1 - 1000
2 - 1031
3 - 1013
4 - 1043
5 - 1050
6 - 1059
7 - 1011
8 - 1026
9 - 1033
10 - 1058
11 - 1036
12 - 1034
13 - 1019
14 - 1042
15 - 1019
HV - 1059
LV - 1000
ES - 59.10
AV - 1032
SD - 17.23
In summary, both were fine accuracy wise for me. I was freehand shooting at some 6" steel swinging targets about 30 yards away and nailing them as long as I did my part. During cleanup I noticed a very small amount of leading near the muzzle and no lube star. I don't get this with my TL bullets with the same powder charge, etc. The bullets have only age hardened about 4 days so there might be something there. Next time, I think I'll go ahead an TL these too and fill the lube groove with Alox and see what happens. :cbpour: